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Linear Chemical Dose Controller (
CDC
LCDC/LFOM)

The linear Chemical Dose Controller (LCDC) is a critical piece of the AguaClara technology which couples the plant flow rate with the flow rate of the coagulant or disinfectant stock solution. The result is a semi-automated system in which the plant operator only needs to set a dose for the chemical and it will be administered automatically as the plant flow rate varies. The system has evolved steadily with major advances every year. The ability to accurately and predictably control the alum and chlorine dosages without electricity sets AguaClara apart from other water treatment technologies.

Excerpt

Spring Fall 2012: The Chemical Dose Controller team is working on constructing a device which will use three lever arms with separate dose sliders that can be set by the plant operator. Using the information collected in semesters past regarding controlling and correcting for minor losses, we are testing appropriate setups including a Tee design connected to the drop tubes in order to accomodate the necessary flows of the two doses of coagulant and dose of chlorine. We are researching the parts necessary LCDC is currently ready for deployment. The team will be reviewing designs from past semesters to scale up current designs. Detailed instructions will be provided for obtaining parts, fabricating components, placing the unit in a water treatment plant, calibrating and using the unit. The aesthetics of the LCDC will also be improved. The best methods of distributing the technology will be evaluated with the goal of finding locally available alternatives. Another objective is documenting the working design so that it can be reproduced on site.


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Team Members

Andrea Castro
Rudra Koul
David Buck

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Documents

 

Challenges

Tasks

Teach-In

Presentation

Final Report

Fall 2012

 

 

 

 

Spring 2012

 

Fall 2011

 

Summer 2011

Spring 2011

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See also:

2011 High Flow Dose Controller
2009 Rapid Mix
2008 Linear Chemical Dose Controller

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